Tricholaba trifolii Rübsaamen, 1917

on Trifolium

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: female

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: female

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: gall

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: gall

Trifolium pratense, Norway, Ellingsrud, 12.ix.2022 © Hallvard Elven: gall

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: larva

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: larva

Trifolium pratense, Norway, Ellingsrud, 12.ix.2022 © Hallvard Elven: larva

Trifolium pratense, Norway, Blindern, 15.ix.2020 © Hallvard Elven: male

gall

A lealet is folded over the midrib, and contains 1-2 yellow or pale orange larvae, that can jump. Pupation in the ground.

host plants

Fabaceae, monophagous

Trifolium medium, pratense, repens.

larva

spatula with papillae (from Möhn, 1955a)

anal segment (from Nijveldt, 1963a)

synonyms

Tricholaba barnesi Milne, 1960.

notes

This species mostly occurs as an inquiline with Dasineura trifolii, but also seems capable to induce galls autonomously. In the case of Dasineura the whole leaflet is galled and swollen, while in Tricholaba only the central part of the leaflet is weakly galled. The larva is pale orange-red; pupation in the soil.

references

Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Gagné & Jaschhof (2014), Möhn (1955a), Nijveldt (1963a), Redfern & Shirley 2011a), Roskam (2009a), Roskam & Carbonnelle (2015a), Rübsamen (1917a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2007a), Skuhravá & Skuhravý (1997a, 1999a,b, 2005c, 2006a, 2009a, 2010a, 2021a: 285), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a).